Canon RF-S18- vs BM Premium High-Power 420-
Updated July 2026 — Canon RF-S18- wins on price and stabilization, BM Premium High-Power 420- wins on zoom and weight.
The Canon RF-S18-150mm lens offers superior features and optical performance, making it a better choice for serious photographers. The High-Power lens is a budget-friendly option for casual users.
Why Canon RF-S18- is better
Price
Canon lens is a premium product with advanced features.
Stabilization
Canon lens has superior image stabilization.
Autofocus
Canon lens features advanced autofocus technology.
Why BM Premium High-Power 420- is better
Price
High-Power lens is significantly cheaper.
Zoom Range
High-Power lens offers extreme zoom capabilities.
Compatibility
High-Power lens is compatible with a wider range of Canon cameras.
Overall score
Specifications
| Spec | Canon RF-S18- | BM Premium High-Power 420- |
|---|---|---|
| Focal Length | 18-150mm | 420-1600mm |
| Aperture | f/3.5-6.3 | f/8.3 |
| Stabilization | Yes | No |
| Autofocus | STM | Manual |
| Compatibility | RF Mount | EF Mount |
Dimension comparison
Pricing Comparison
The Canon RF-S18-150mm F3.5-6.3 Telephoto Lens is priced at $569.00, while the High-Power 420-1600mm f/8.3 HD Manual Telephoto Zoom Lens is significantly cheaper at $139.99, making it about 75% less expensive. This price difference makes the High-Power lens an attractive option for those on a budget, especially for casual photographers or hobbyists. However, the investment in the Canon lens could be justified by its advanced features and superior optical performance, particularly for serious photographers who prioritize quality.
Build Quality and Design
In terms of design, the Canon RF-S18-150mm lens is crafted for APS-C cameras and boasts a versatile zoom range, making it a practical choice for various photography styles. Its construction emphasizes durability and usability, particularly when paired with EOS R series cameras. On the other hand, the High-Power 420-1600mm lens, while offering a remarkable zoom range, is a manual lens, which may require a steeper learning curve for those not accustomed to manual focusing. The manual design can also affect the overall shooting experience, particularly in fast-paced situations like wildlife photography.
Zoom Range and Versatility
The Canon RF-S18-150mm lens offers a zoom range of 18-150mm, covering standard angles to telephoto shots. This enables a wide variety of photography styles, from landscapes to portraits. In contrast, the High-Power 420-1600mm lens provides an astounding zoom capability, reaching up to 1600mm with the included 2X teleconverter. This makes it particularly suited for long-distance photography, such as sports or wildlife. However, its usability might be limited to specific scenarios where such extreme zoom is necessary, making the Canon lens more versatile for everyday photography needs.
Image Stabilization Features
The Canon RF-S18-150mm lens is equipped with in-lens optical image stabilization, offering up to 4.5 stops of shake correction, and significantly up to 6.5 stops when paired with compatible EOS R series cameras featuring In-Body Image Stabilizer (IBIS). This feature is essential for achieving clear images, especially in low-light conditions or while shooting video. Conversely, the High-Power 420-1600mm lens does not mention any stabilization features, which could lead to challenges in capturing sharp images at such extreme focal lengths, particularly without a tripod or other stabilization methods.
Autofocus Capabilities
The Canon RF-S18-150mm lens utilizes a lead screw-type stepping motor (STM) to provide smooth and quiet autofocus, which is particularly beneficial for video recording and capturing spontaneous moments without disturbing the subject. The High-Power lens, being a manual focus lens, relies entirely on the photographer's skills for focusing, which can be a drawback for those who prefer the convenience of automatic focusing. This difference in autofocus technology highlights the Canon lens's suitability for dynamic shooting conditions where quick adjustments are necessary.
Compatibility with Camera Systems
The Canon RF-S18-150mm lens is specifically designed for APS-C cameras with an RF mount but also allows for automatic APS-C sensor cropping when used on full-frame EOS R-series cameras. This feature enhances its usability across different Canon camera systems. On the other hand, the High-Power 420-1600mm lens is compatible with a broader range of Canon models, including older DSLRs and newer models like the EOS 90D and 5D series. This extensive compatibility may appeal to photographers who own multiple Canon cameras, but the lack of advanced features like automatic cropping could limit the performance on full-frame bodies.
Target Audience and Use Cases
The Canon RF-S18-150mm lens is ideal for photographers who need a reliable, versatile lens for various shooting scenarios, including landscapes, portraits, and videos. Its advanced features and quality optics cater to both enthusiasts and professionals alike. Conversely, the High-Power 420-1600mm lens targets hobbyists and wildlife photographers looking for a budget-friendly option to capture distant subjects. While it provides impressive zoom capabilities, its manual focus and limited stabilization may not meet the demands of more serious photographers.
Which should you buy?
Choosing between the Canon RF-S18-150mm and the High-Power 420-1600mm lens ultimately depends on your photography needs and budget. If you seek versatility, advanced features, and superior optical performance, the Canon RF-S18-150mm lens is worth its higher price of $569.00. However, if you are on a tight budget and require an extreme zoom for specific photography situations, the High-Power 420-1600mm lens at $139.99 may be the better option for you, despite its limitations in autofocus and stabilization.

